Variable Voltage Batteries
voltage batteries are electronic cigarette batteries that allow the user to alter the amount of power produced by the device. … The solution was variable voltage batteries that gave the user control of the specific voltage output, down to the tenth of a volt.
When you are charging, it indicates charge completed. When you pressing power button 3 times continuously, the indicator light blinking green it indicates that the vape pen switches to high mode power output
The color of the light indicates the charge level of the battery. Green indicates that the battery is fully charged. As the battery is depleted, the color changes from green to yellow, orange, and then red. The ideal time to recharge the unit is when it first turns from orange to red.